Persicaria lapathifolia
curlytop knotweed, curl-top smartweed, pale smartweed, dock-leaved smartweed
Family
Polygonaceae
Leaf Attachment
petiolate
Leaf Type
simple
Leaf Shape
elliptic, lanceolate, ovate, subrhombic
Growth Form
forb
Flower Color
pink, purple, white
Flower Month
July - October
Height (meters)
0.8 - 1.5
Milky Sap
No
Armed/Unarmed
Unarmed
Origin
introduced
Lifespan
annual
Wetland Class
FACW
Field Characters
Anchor shaped veins in the outer members of the perianth. White flowers, spike curled downward. No hairs on sheath or stem.
Habitat
Alluvial fields, river banks and disturbed areas. Damp areas, often ditches.